Call: 01392 678082

Established 2004

Ruddlesden geotechnical

Ruddlesden geotechnical provides ground investigation, geotechnical consultancy and contamination assessment services.

Based in Exeter, but covering the whole of the UK, albeit primarily concentrated in the South West, Ruddlesden geotechnical was formed in 2004.

Ruddlesden geotechnical works on behalf of a wide client base, including local, regional and national housing developers, housing associations, commercial developers, building contractors, structural and civil engineers, architects, building consultants, quantity surveyors, local authorities and private individuals.

Development projects range from single dwellings and extensions to large housing estates, multi-storey flats, offices, industrial units, roads, slopes, schools, hospitals and basements.

The services and projects listed on this web-site provide an indication of those undertaken by Ruddlesden geotechnical, but others are carried out. If your requirement is not readily identifiable on this web-site, please contact us as we may still be able to help you.

  • AGS
  • Constructionline
  • CSCS
  • SMAS
  • ECFC trust

Latest news

Recent projects

  • Latest news

    16 Apr 2026

    Coastal Slope Stability Assessment

    Geoff Davis has recently been in his element, carrying a slope stability assessment for a holiday park that has recently seen some quite dramatic ground movements.One thing that this project has highlighted is that for all the new technologies that are available to help us understand the ground, including LiDAR, drone surveys, remote sensing and inclinometers, all of which we intend to use on this site, they are of little use if the ground model is not understood. And this understanding of geology and geomorphology only come from a combination of education and experience.It is hoped that our understanding of the landslide processes at this complex site will allow us to predict possible future behaviour and assist in developing a long-term strategy for the future of the holiday park and its management.

    Coastal Slope Stability Assessment
    Coastal Slope Stability Assessment

  • Recent projects

    Economical Recommendations Provided for Ground Floor Slab Design, Devon

    Ruddlesden geotechnical were commissioned to review historical site investigation data to form a ground model and provide guidance on the use of a ground bearing slab for a proposed warehouse for a regional wholesaler. Consideration was given to the bearing capacity of the subgrade, volume change potential of the soil, slope of the ground, groundwater table, ground aggressivity and the presence of non-engineered fill materials. To avoid the requirement for a suspended floor slab, it was recommended that the superficial shrinkable soils be removed and engineered fill be imported to support the proposed ground bearing slab.

  • Recent projects

    Highway Investigation Works Adjacent to Live Highway, Cornwall

    In-situ California Bearing Ratio (CBR) testing was undertaken to provide a design CBR value for road pavement design. The testing was to be undertaken within a highway verge of an existing A-road. Ruddlesden geotechnical obtained the necessary street works licence and organised the appropriate level of traffic management to protect site operatives. Trial pits were excavated within the verge to reveal the underlying subgrade. A number of Transport Research Laboratory (TRL) Dynamic Cone Penetrometer (DCP) tests were undertaken to ascertain the strength of the subgrade and, combined with UKAS accredited laboratory testing, calculate a representative CBR value for design.

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